See www.jgaa.com for information about Jgaa's Internet and links to the software.
Add this to your /etc/apt/sources -file. (provided that you use the Debian/Lenny distribution).
apt deb http://apt.jgaa.com/ lenny main
This is the public-key for this apt-archive:
-----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.4.9 (GNU/Linux) mQGiBEnKSDwRBACUhKSBIxrrdbKQDtCp6g/jPJVTaI3wTvvvThF90ODyNjX6HyPZ /0FAR1FFex37EMrRJVVRpGip8+PIsdDRdj6TABSOCW/Zyq5C3on+r1kj+ypJ1aNn 3NRjKyi9kEhOxmQz66nsEdtSN1a4PKNDqFRldnl18W5H+z4top2PKxqvpwCgtiZA +PwX1yLIH3Xy2u+Fp+LNf2sD/2e5yjalsH7Gko20CETntErVWzdUumPbapCgRO5I Q4zmskDBB2WborrKQ4cpb2sa35D8YnhWDajxS9SDTcnpT1y2eCNCn1v/Q4LFy6yk l2QmMlgJLUmFYvx1vkyIItN86HPwxsKUD5QVkjlgyToZ5lbCN8owkNzAIDqF3MQX CLBbA/9c102vhf9+JMK/CXLGHduSKbkpd4tCBNmtPArpHJ/yB5FoQe5UDeZQFhE7 0XhubExx7t14+jmA4Dh15hBowlx8f2OaFkt4oChWumKzN6+G0rhWQ1gj+ju6vV9d b4bTsrX7HXMYoErpE5onWcSCmNaR19+ElJEuujGxNcNQDHaZqLQhSmFybGUgQWFz ZSAoamdhYSkgPGpnYWFAamdhYS5jb20+iGAEExECACAFAknKSDwCGwMGCwkIBwMC BBUCCAMEFgIDAQIeAQIXgAAKCRDqu/a2XbhY1jMUAJ9MEzyXW/MGTbVU5qS1Zza+ 0MhggQCdFtjw5wk7pzFLlHZoJovD15Z1HoO5BA0EScpIPBAQAPp2gUwWC6y4ulom 3igKtSvZ0/CZ2Pz8fgCj6nZ9+pfTR3GEvu7i6zcXSsJuHx2ywlH1rqwkaL80Inus ZTi17SdRR8Rt22h9b4Zbe4kS4LWywapg7BFW12zk2Ry2QVSFGhLCmMT9TGZijyZO uBOhbAAvRm8sJLI5dA2x6CG3sPDhqjSET275rpvdWkE2Ne8M/hZBVkA+5Ita5Eyk YDYr24mFx65SXX0YL8I6wqxr92LHptAo2hnNZI8GZ4I5Rk9pfyD6PY+59BLerTlj OEbK9yLcNsptVxdlBKV/NsExv+BubV3al1wyppOZjoeaswSpfI8VpSWv+NEDFJCZ jGKTs4e6hP8fx0bSecaqKURWgAWJK6ucj9tyBYRpSSpgwDOwjibPrmru+3f0zzsc HII+VzcQ+UsLRnz8tjiEPBLb2uZNZXr8RERvkvtF19yhVRun9P5uVj2tL8BGvd1q 0UGLL2k8Zmv4ncRkIO/jmsFGfu9a4zRSQFYalvhak05z1WyHVS/Ormt9upxnhMQp zqlzqlaibvfVegVnkrf3VFCsjbwYs9eeNL2YEZTLKGhTUkayQ5HOx2/17MOoTV+A LCyxtc1PizFFnvQEird2gOPJ/lqLrG2q19AgDblunnCaF7xc1Gx4FnIIr9YXGbwl O3BEprRWC8l04k1hvPJOzh9THJfnAAQLD/wId5PYn4hdMKmWS7nnG3UhYiiJnKd9 12ty2MJVYsmVGWoGVe1H6OhGNbYSv1jBueJ1b+H/lhm3sIAJS19DMEXGJbV7EYg5 GsDbgy/AxtOXA7QAAppVYTE5v4ZwaX9gDqJeTCdt2upIlsFV8yKl8gT1/TsjVgL6 fE8GOCyea95yoUHOJd2VFx2UAeos3oGJem5uvFsPwEOdlUZCnErHY7GRKKTCcAgT Hv2Eg6s+BMl2MbhdQNl3sajKOrhrlrbCWYPpFVRiYn82b1w7NnXFQ9MXvE2CMmLX 26BaJ0uL4LdUWVn/zStl/fQZPtfgh1Umt8E0v6jX1Fuui0UPAITsZxkf6CfpIeas PareQsLGhT9Qm4cUjLzpptQNIqVDxT5qgQm1K2GDfkoozu4nnNBxb6Pc2pZSUKX9 QT9Q+EfLVEdrmMgBAWrdcC29rWMy5s5k7hPoyFnhDxc5jP3bSjoEnYNZ1cBHtf3y ni5tJo8RYKbOhGNyb+4FGPofM8ZFeuquSoICg0XchUVqHAoA1EzLtOJVftfp/ZNO 5JP2Gzcm84ZjxOQjmaO/nQeqiZbqA8A1L6TbCLULdxPxRLT3yadJ/qDIsGOmQS7Y aBRoLrkQqdX2XYnzmnL0aNHTA+A/Uu7/+Uw8dR9IIHpA01UQkKBYlW37hVyrdffm BStVspdj6WipUIhJBBgRAgAJBQJJykg8AhsMAAoJEOq79rZduFjWKagAnR40ebdT zmeC5oVU+ZBVxMj2RaBXAKCJ1v2tQDkwkbz889gIIKv3iDR+/w== =svyl -----END PGP PUBLIC KEY BLOCK-----
The key may also be downloaded directly from apt.jgaa.com/pgpkey.txt
Get the key, and run
apt-key add pgpkey.txt(or whatever you call the keyfile) prior to
apt-get updateand
apt-get install package-name.
If you want to be fancy, you can try
wget -q -O - http://apt.jgaa.com/pgpkey.txt | apt-key add -
If you do add the keyfile, you are vulnerable for malicious software if my pgp-key is compromized. This is not a specific issue for this site, but a general problem, and a general warning. Read more about apt-related security here